So I have just begun testing my Wireless SD Shield from Arduino with my Arduino UNO. Upon running my the basic CardInfo sketch, it uploads and displays data, but far more than expected. The SD Card is entirely empty, as in, if I plug it into my computer, there are no files on it. However, this is the Serial Monitor Output I receive:

The reason I have included screenshots rather than copy and pasting the output, is that if I try and copy and paste, it does not copy all of the Files Found on the card, it only copies the first 8 lines.

Any help would be greatly, appreciated!

This code does not compile for me and gives me an avrdude error which I believe is due in some part to the above pictures:

Simply seeing an empty card on your computer, does not mean it's empty. Turn on 'Show hidden files' in Windows. Besides that, many of these files are written to the SD card to make it usable. Without them the card is either corrupted or formatted.
– LenJul 19 '16 at 10:09

2 Answers
2

Joy of tech... It's full file table, with old, deleted entries appearing as current files. You can nuke it with a quick or slow format, but the problem will return later. I don't know this shield, but there must be some problem with the code - it really shouldn't show deleted entries. Try another library, or google for problems with your current lib.

Not sure about quick format - but in any case, it shouldn't show old FAT. Please post your findings, I have some microsd modules in the mail.
– user400344Jul 19 '16 at 15:48

So I ended up leaving it be, and simply ran a different sketch and it seems to be working fine so far. I believe it may have been some hidden files instaled by my Mac when I first tried to use it, and so hopefully it will not be an issue in the future.
– tyler aJul 20 '16 at 8:47